Briquette for lighting fires



Patented July 26, 1949 UNITED STATES PATENT OFFICE BRIQUETTE FORLIGHTING FIRES Georg Fosnaess, Gulsrud, Norway No Drawing. ApplicationJuly 2, 1947, Serial No. 758,715. In Norway August 19, 1946 3 Claims.

The present invention refers to a method of producing briquettes forlighting fires. The briquettes are chiefly characterised by their beingsoaked for about 15 minutes in a fluid consisting of Diesel-oil, codliver oil and tar.

There are on the market briquettes for lighting fires, made of wood orpine roots saturated with an ignitible fluid and without such treatmentbut these briquettes, being insufliciently porous, do not absorb enoughof the fluid.

The idea of the present invention is to produce briquettes for lightingfires, in a particularly quick and cheap way by applying a flu-id notpreviously used; this fluid makes the porous substance of the briquetteshighly ignitible and supplies them with a moisture-protecting cover(outer section) which counteracts drying.

The process is as follows: The briquettes are cut out of a hard-pressedthough porous material, e. g. hard-pressed wood card-board, A thicknessin suitable sizes, e. g. 4" x A". The finished briquettes are now placedin a container made'of netting, which is lowered into a larger containerfilled with an ignitible fluid, consisting of 80% Diesel-oil, 15% thickcod liver oil with great fat contents and 5% tar, which are mixed wellby means of a stirring device, heated or not heated. It is suflicientfor the briquettes to be soaked in the fluid for about 15 minutes as theporous briquettes absorb the fluid instantly. Thereupon the briquettesare passed through a cooling device to enable the moisture-protectingcover of fat on the briquettes to set, then they go on to a packingmachine to be packed in an impregnated material.

If it is diflicult to obtain the thick cod liver oil required, theignitible fluid may consist of 75% Diesel-oil, cod liver oil of aninferior quality, 10% stearine and 5% tar. The cod liver oil may then beof a type containing less fat, as the stearine will deposit itself onthe surface of the briquettes and serve as a moisture-protecting cover,this being the chief purpose oi the stearine,

2 Otherwise the process is the same as already described.

The briquettes may of course be made of other material than woodcard-board as long as the material is porous in order that the thickfluid be absorbed right through. The composition of the fluid may alsovary but after experiments carried out it has been agreed to keep to theratios mentioned.

Thus, according to the invention the absorption of the thick fluid andthe impregnation in the moisture-protecting cover of fat take place inone and the same operation, thus avoiding any additional treatment ofthe briquettes.

I claim:

1. A briquet for lighting fires, comprising hardpressed wood cardboardimpregnated with an intimate mixture containing -80% Diesel oil, 5% tar,and 10-20 percent of a fatty substance selected from the groupcomprising cod liver oil and stearine.

2. A briquet for lighting fires, comprising hardpressed wood cardboardimpregnated with an intimate mixture containing Diesel oil, 15% thickcod liver oil having a high fat content, and 5% tar. V

3. A briquet for lighting fires, comprising hardpressed wood cardboardimpregnated with an intimate mixture containing 75% Diesel oil, 10% codliver oil of low quality, 10% stearine, and 5% tar.

GEORG FOSNAESS.

REFERENCES CITED The following references are of record in the file ofthis patent:

FOREIGN PATENTS Number Country Date 729,496 France Apr. 26, 1932 501,465Great Britain Nov. 21, 1938 522,299 Great Britain June 14, 1940

